Commitments and Contingencies (Details)		9 Months Ended	12 Months Ended		14 Months Ended
	Mar. 23, 2015	Sep. 30, 2017 USD ($) claim	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2017 USD ($) claim	Jun. 17, 2013 USD ($)
Long-term Purchase Commitment [Line Items]
Loss contingency, damages sought		$ 4,500,000
Multiplier for earnout payment before EBITDA		4			4
Minimum EBITDA benchmark		$ 3,500,000.0			$ 3,500,000.0
Maximum earnout payment amount		$ 4,500,000.0			4,500,000.0
Site contingency, recovery from third party of environmental remediation cost					11,800,000
Environmental costs recognized, capitalized in period					$ 12,500,000
Number of remaining claim to be resolved | claim		2			2
Bankruptcy claims amount of claims to be settled		$ 22,400,000			$ 22,400,000
Estimated value of claims remaining to be settled		500,000			500,000
Maximum bankruptcy claims remaining		$ 22,400,000			$ 22,400,000
Predecessor working ownership percentage		3.40%			3.40%
Allowed claims, settlement ratio		0.0544
Indemnification Agreement | Tesoros
Long-term Purchase Commitment [Line Items]
Deductible for indemnification obligation		$ 1,000,000			$ 1,000,000
Indemnification obligation cap		15,000,000			15,000,000
Clear Air Act Violation
Long-term Purchase Commitment [Line Items]
Final decree high estimate		30,000,000
Pending Litigation
Long-term Purchase Commitment [Line Items]
Claim amount for environmental losses (more than)		1,000,000			1,000,000
Wyoming Refinery One
Long-term Purchase Commitment [Line Items]
Environmental remediation expense		$ 20,000,000			20,000,000
Environmental costs recognized, period for recognition of one third costs		5 years
Environmental costs recognized, remainder, period for recognition		30 years
Wyoming Refinery Two | Wastewater Treatment Pond
Long-term Purchase Commitment [Line Items]
Environmental remediation expense		$ 500,000			500,000
Wyoming Refinery Two | Waste Water Treatment System
Long-term Purchase Commitment [Line Items]
Environmental remediation expense		11,600,000			11,600,000
Wyoming Refinery
Long-term Purchase Commitment [Line Items]
Loss contingency, range of possible loss		$ 100,000			$ 100,000
United Steelworkers Union
Long-term Purchase Commitment [Line Items]
Collective bargaining arrangement, extension term	4 years
Tesoro
Long-term Purchase Commitment [Line Items]
Contingent consideration (up to)						$ 20,000,000
Loss contingency, damages paid			$ 16,800,000.0
Loss contingency, damages sought			$ 8,300,000	$ 4,300,000